On Feb 18, 3:57*pm, wrote:
I need to protect 3 sheets in a workbook from being unhidden. * I know
Excel has the password protection at the time you open and the
worksheet protection. *I also know there is a large number of products
that can break these.

I am looking for a way to increase the security level - does anyone
know of a third party program that will secure it?

Thanks in advance